On Tuesday’s mid-season finale, “Pretty Little Liars'” foursome heads into the woods as Mona throws a self-indulgent birthday party — complete with massage tent, mini bar and “blow me” bar. But don’t worry, that’s not an area in which to earn Silly Bands, it’s a hairstyling haven … as long as you’re headed into a kiddie pageant!

But the girls have no intention of enjoying Mona’s amenities — ‘A’ texts them that clues to her identity lie in wait at the soiree, so Emily and Aria subject themselves to the kind of teasing you don’t typically find in today’s high school hallways while Spencer goes on the hunt.

And those are not special effects folks — “none of that hair is extensions or a wig in any way,” Shay Mitchell told PopWrap. “That is all Lucy or my real hair! It’s a lot of hair spray and took quite a bit to get it like that … it’s for the sake of the show!”